Quick answer
What to do before reinstalling IDM or moving your original 1 PC license to another computer.
Yes, you can reinstall Internet Download Manager, but the correct steps depend on what changed. Reinstalling IDM on the same computer is different from moving a license to another computer. Because IDMMARKET sells 1 PC licenses, the license should be used on one computer at a time.
This article explains the practical difference between reinstalling, reinstalling Windows, replacing hardware, and moving to a new PC.
Reinstalling IDM on the same PC
If you are using the same computer and only need to reinstall IDM, the process is normally straightforward. Download the latest IDM installer from the official website, install it, and register it again with your original serial number if required. Keep the same purchase email and order number available in case support needs to verify the license.
If IDM already shows that it is registered, you do not need to register again. The official IDM registration FAQ explains that when the registration menu is disabled or shows IDM is registered, the current installation is already activated.
After reinstalling Windows
If you reinstall Windows on the same PC, IDM may ask for registration again. In this case, use the same serial number and purchase details. Make sure you are installing a genuine IDM copy, not a modified installer downloaded from third-party websites.
If activation fails after a Windows reinstall, contact support and include the order number, the email used during checkout, and a screenshot of the activation message. This helps support distinguish between a normal reinstall problem and a license status problem.
Moving IDM to a new computer
If you want to use IDM on a different computer, first uninstall IDM from the old computer. Then install IDM on the new PC and register it with the same serial number. Do not keep the same 1 PC license active on multiple computers at the same time.
The official IDM FAQ states that IDM has a per-computer license model. That means if you need to use IDM on several computers at the same time, you should buy separate licenses for those computers.
What if the old computer is broken?
If the old PC is no longer accessible, do not share the serial number or try to activate it repeatedly. Contact support and explain the situation. Include your order number, checkout email, and the new PC information if asked. Support can guide you through the correct next step.
Checklist before changing your PC
- Save your order number.
- Save the email used during checkout.
- Open My licenses and confirm the serial number is visible.
- Uninstall IDM from the old PC before activating the new one.
- Use the official IDM installer.
When to request support
Contact support if the serial number is shown as blocked, fake, invalid or already used on another computer. Send the exact error message, not only a general explanation. A screenshot is usually the fastest way to identify the problem.
Need help? Open the IDMMARKET support page or read the activation guide.
Need an original IDM license?
Buy a genuine Internet Download Manager license for 1 PC and keep your activation details available in your IDMMARKET account.